After a storm, a skylight leak may come from the flashing, surrounding roof, or the skylight unit itself. Your first move is containment: catch the water, move belongings and electronics out of the way, and stay clear of outlets near the drip. If water is heavy or spreading, call an emergency contractor instead of climbing onto a wet roof.
TL;DR:
- Water can travel along rafters or underlayment, so a ceiling stain may miss the entry point; have a roofer inspect framing, flashing, shingles, and glazing.
- Avoid switches and equipment in wet areas, and never remove wet insulation or run fans; flooded electrical systems require professional cleaning and drying.
- Buckets and waterproof sheeting can limit interior damage, but caulk over flashing is not a permanent repair; leave wet or windy roof work to contractors.
- Photograph interior and exterior damage from the ground, record storm and discovery times, keep receipts, and check your insurer’s reporting deadline and deductible.
- After major storms, check flashing and nearby shingles, clear gutters and roof drains, and rebuild skylight flashing when reroofing rather than relying on later patches.
Table of Contents
- What usually causes a skylight to leak after heavy rain?
- Is it condensation or a storm-driven leak?
- What should you do in the first hours after the storm?
- Which temporary fixes are safe to try yourself?
- How do contractors find the real source of the leak?
- When should you call a roofer, and how do you document for insurance?
- How do you prevent skylight leaks before the next storm?
- How does the insurance claim process work for a storm-related skylight leak?
- How do hail, wind and heavy rain affect a skylight differently?
- Why a fast response matters, from our side
- How we help with a skylight leak, from tarp to claim
- FAQ
- Sources
What usually causes a skylight to leak after heavy rain?
Skylights are openings in your roof's water-control layer, which makes them a natural weak spot. Building science guidance recommends inspecting skylight flashing and tying it into the roof's drainage layers so water cannot sneak in. When a storm tests those details, these are the usual suspects:
- Flashing failure: bent, lifted or poorly sealed metal around the frame lets wind-driven rain slip underneath.
- Roof-covering damage: lifted or missing shingles and torn underlayment near the skylight expose the layers below.
- Seal or gasket wear: worn seals may contribute to a leak.
- Glazing condition: inspect the glazing for damage.
- Age: older skylights may have worn components.
- Weather exposure: inspect the curb and flashing for signs of water entry.
One more thing worth knowing: water often runs along rafters or underlayment before it shows up inside, so the stain on your ceiling may sit well away from the actual entry point.
Is it condensation or a storm-driven leak?
Before you call anyone, figure out what kind of wetness you have. Condensation and a true leak look similar at first, but they behave differently.
- Condensation may appear on the glass or trim.
- A possible storm-driven leak may be associated with rainfall and visible stains or drips.
- A quick check: note when the moisture appears. A professional can inspect for damp insulation or wet framing near the skylight.
Pro Tip: Write down when the drip starts and the weather conditions. This information may help a roofer investigate the source.
What should you do in the first hours after the storm?
Treat the first few hours as a containment job. Work through these steps in order:
- Avoid using electrical switches or equipment in wet areas. If water is near electrical components, seek professional help.
- If you can do so without entering a hazardous area, place a container under the drip and protect nearby belongings.
- Move belongings away from the leak only if it is safe to do so.
- Do not remove wet insulation or use fans or a dehumidifier in a wet area. If electrical systems have been flooded, use professional cleaning and drying services.
- Photograph the leak and damage if you can do so safely.
Drying matters because storm moisture can bring mold and contamination. The CDC's safety guidance for storm-damaged homes advises avoiding electricity in wet areas and drying thoroughly, with professional cleaning when systems were flooded.
Key point: the CDC warns that a flooded home may have mold and contamination risks. Use caution around wet materials and seek professional cleaning if systems were flooded.
Which temporary fixes are safe to try yourself?
Temporary fixes protect your interior. They rarely cure the underlying flashing or underlayment problem, so think of them as a bridge to a real repair.
- Inside: keep buckets in place, line the area with waterproof sheeting, empty any water from the trim tray, and use tape only on small finish areas as a very short-term measure.
- Gutters and roof drains: arrange for debris to be cleared so water can drain freely.
- Roof repairs: have a roofing professional assess and repair damaged shingles.
- Skip this: do not attempt roof work in wet or windy conditions, and do not treat caulk over flashing as a permanent repair.
Pro Tip: Do not attempt to reach or repair a roof problem yourself. Ask a contractor to assess it and arrange temporary protection.
For more on short-term exterior protection, see our guide to temporary roof repair options, and if water is coming in fast, our steps to stop a roof leak emergency cover the essentials.
How do contractors find the real source of the leak?
A good diagnosis looks beyond the spot where the drip lands. Here is what a thorough inspection usually includes:
- Attic check: looking for wet insulation, stained framing and moisture trails that lead back toward the skylight.
- Flashing review: examining how the flashing meets the shingles and underlayment around the curb.
- Roof-layer inspection: checking nearby shingles, valleys and underlayment for storm damage.
- Water testing: a professional can test the roof in a controlled way to help identify the source.
Because water travels, a drip at the skylight does not prove the skylight unit has failed. Home inspectors point out that skylights are exposed to weather and prone to leaks, and that signs of earlier patching often point to prior leakage. They recommend checking the curb, flashing details and glazing condition.
When should you call a roofer, and how do you document for insurance?
Call a professional to assess an active leak, wet insulation or framing, or any situation where you cannot safely contain the water. Our walkthrough on who to call for a roof leak explains what a same-day service call looks like.
Here is the documentation routine that speeds up repairs and claims:
- Photograph and film interior damage and, from the ground, any visible exterior damage.
- Record the storm date and time, plus when you first noticed the leak.
- List every temporary step you took, with photos of each.
- Keep receipts for emergency materials and for any contractor tarping.
- Ask the contractor for a written estimate and whether they use certified inspectors (such as HAAG) for insurance reports.
Flood-insurance guidance also recommends that homeowners inspect roofs after heavy winds and document damage to manage water-damage risk. Our checklist on how to document roof damage for your insurer goes into photo angles and wording.
How do you prevent skylight leaks before the next storm?
A few habits cut your risk noticeably:
- Check the flashing and surrounding shingles after each major storm and during routine roof checks.
- Keep gutters, valleys and roof drains clear so water never pools near the skylight.
- If the skylight is aging, consider replacing it when you re-roof, and have the flashing rebuilt as part of that work rather than patched later.
- Schedule a professional inspection whenever you plan reroofing or other major roof work.
Doing the skylight and roof together means the flashing is integrated with fresh roofing layers, which is exactly the approach building science guidance favors. If you are weighing new shingles, Owens Corning roofing is one product line to discuss with your contractor.
How does the insurance claim process work for a storm-related skylight leak?
Start by reading your policy or calling your agent to learn the deadline for reporting storm damage and your deductible. Most insurers want prompt notice, so report the leak as soon as you have photos and a rough timeline. Describe it factually: the storm date, where the water entered, what got wet, and the temporary steps you took to prevent further damage.
Next, an adjuster typically schedules a visit. Having a contractor's written estimate and inspection notes ready helps the conversation, especially if the damage involves flashing, shingles and underlayment around the skylight rather than the unit alone. A visible interior stain should be tied to its true source, so share attic photos and any moisture findings.
Keep receipts and communications related to the damage. Ask your insurer how to handle damaged materials before disposing of them. If a payout seems to leave out part of the roof work, ask for a written explanation and share your contractor's documentation.
We help homeowners through this process, from the inspection to the paperwork, and you can read more in our guide to documenting roof damage for insurers. Policies differ, so confirm specifics with your insurer or agent.
How do hail, wind and heavy rain affect a skylight differently?
Each kind of storm attacks a different weak point, which is why the damage pattern can tell a contractor a lot.
Hail may damage the glazing, frame, flashing or surrounding roof. Have suspected damage inspected.
Wind can damage roofing and flashing. Inspect the roof after heavy winds, as homeowner guidance recommends. Homeowner guidance advises inspecting your roof after heavy winds for this reason. A partner roofer's list of ground checks for wind-damaged shingles is a useful way to spot trouble before you file a claim.
Heavy rain can reveal a roof or skylight leak. Water may travel along rafters or underlayment before appearing indoors, so the visible leak may not identify the entry point.
Many storms combine all three, so a careful inspection of the whole skylight and the roof around it is worth more than a quick glance at the glass.
Why a fast response matters, from our side
Please do not risk a wet, windy roof to save a service call; your safety comes first. Prompt containment and documentation can help you explain the damage and discuss repairs with your insurer. We offer emergency response and coordinated claim support so you do not have to manage it alone.
— Ebben
How we help with a skylight leak, from tarp to claim
When a storm sends water through your skylight, we can step in quickly:
- Emergency tarping and roof repair to stop water entry
- Storm damage restoration for the roof and surrounding areas
- Insurance-claim assistance, including HAAG-certified inspections
- Roof inspections
Have your photos, the leak's location, the storm timeline and any temporary steps ready when you call. If the leak is significant, contact us for an emergency inspection through our roof repair page.
FAQ
Is it normal for skylights to leak?
No, a properly installed and maintained skylight should not leak. Leaks usually point to failed flashing, worn seals or damaged roofing nearby, and inspectors note skylights are more exposed to weather than vertical windows.
Is it normal for a roof to leak in heavy rain?
A roof in good condition should shed heavy rain without letting it inside. A leak means something has failed, often flashing, shingles or underlayment, and it is worth having inspected promptly.
How much does it cost to fix a leaky skylight?
Cost depends on whether the problem is flashing, roofing around the unit, or the skylight itself. We do not publish prices, so ask for a written estimate after an inspection.
How long can a roof leak before it collapses?
There is no safe timeline. Ongoing moisture can weaken insulation and framing and encourage mold, so contain the water now and have a contractor assess any sagging or soft spots right away.
Sources
- Existing Skylights Repaired or Replaced and Fully Flashed | Building America Solution Center
- Skylights - American Society of Home Inspectors, Inc.
- Five Facts to Help New Homeowners Protect Against Water Damage | The National Flood Insurance Program for Agents
- Safety Guidelines: Reentering Your Flooded Home | Floods | CDC